Combined scraper and handle-lock for lawn-rollers.



'B. 'E. DUNHAM & A. E. MERKEL. comamcn scnAPER AND HANDLE LOCK run LAWNROLLERS.

' APPLICATION FILED SEPT. 24. 19H.

1,287,264. Q Patented D 10, 1918.

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UNITED STATES PATENT OFFICE.

RAY E. DUN HAM, OF BEREA, AND ARTHUR E. MERKEL, OF CLEVELAND, OHIO,ASSIGN- ORSTO THE DUNHAM COMPANY, OF BEREA, OHIO, A CORPORATION OF OHIO.

COMBINED SGRAPER AND HANDLE-LOOK FOR LAVJN-ROLLEBS.

Specification of Letters Patent.

Patented Dec. 10, 1918.

Original application filed June 6, 1917, Serial No. 173,161. Divided andthis application filed September 24,

' 1917. Serial No. 192,991.

T 0 all whom it may concern:

Be it known that we, RAY E. DUNHAM and ARTHUR E. MERKEL, citizens of theUnited States, and residents, respectively, of Berea, county ofCuyahoga, and State of Ohio, and Cleveland, county of Cuyahoga,

and State of Ohio, have invented new anduseful Improvements in CombinedScrapers and Handle-Locks for Lawn-Rollers, of which the following is aspecification, the principle of the invention being herein explained andthe bestmode in which we have contemplated applying that principle, soas to distinguish it from other inventions.

Our invention relates to land rollers and particularly to that class ofsuch rollers which are water-weight rollers and particularly used forrolling lawns, the object of the invention being to provide a lawnroller with means for scraping or cleaning the cylindrical surface ofthe drum. These means may incidentally be so disposed as to form a lockfor the handle and are so disposed in the embodiment of our inventionherein shown and described. More particularly, our invention relates toimprovements in this class of rollers whereby the scraping means aredisposed in a plane intersecting the drums axis so that the scrapingfunction is effected by means of a shearing action rather than by fiatcontact. Furthermore, our invention relates to specific means formounting the scraper bar by a double support.

The said invention is an improvement upon the combined scrapers andhandle locks for lawn rollers described and claimed in U. S. LettersPatent No. 1,218,635, issued to R. E. Dunham, one of the applicantsherein, and has been divided out of pending application for U. S.Letters Patent, Serial No.7l7 3,161, filed by these; applicants June 6,191 i Our improvements consist in providing such combined scrapers andhandle locks for lawn rollers with means whereby the scraper bar may beresiliently locked to the surface of the drum so as to provide a lockfor the handle, when the roller is not in use, and yet may accommodateitself to any uneven condition of the soil? when the roller is in useand may further be positively locked out of contact with the drumsurface, when the device is being used as a roller alone.

The annexed drawing and the following description set forth in detailcertain means embodying our invention, the disclosed means, however,constituting but one of various mechanical forms in which the princi pleof the invention may be employed.

In said annexed drawing:

Figure 1 represents a front elevation of our improved lawn rolleryFig. 2represents a plan view of the parts shown in Fig. 1; and Figs. 3 and 4represent, respectively, upon an enlarged scale, a plan view and a frontelevation of the eccentric and connected parts shown in. Fig. 1.

Referring to the annexed drawing, our im proved roller comprises a drum1 upon which is oscillatorily mounted a handle provided with a handleportion proper 2, a grip portion 3 and a transverse member 4, the axleupon which the handle is thus mounted not being shown, the mountingbeing by means of roller bearings (not shown), the

same being retained and protected by the hub caps 5. Mounted upon thetransverse member 4 is a supporting bearing member 10 and ournaled insaid member 10 by means of a connecting ournal portion 9 are two disks 8forming an eccentric member 6. Eccentrically connected by pins 11 tosaid disks 8, respectively, are a pair of rods 12 extending in oppositedirections and connected at their other ends, respectively, to a pair ofbell-crank levers 13, the other ends of which levers are in turnconnected to the upper ends, respectively, of upright rods 15, formingsupports for a scraper bar 14, as plainly shown in Fig. 1. Said scraperbar 14 extends generally longitudinally across substantially the wholesurface of the drum 1, and is mounted at an angle to the drums axis.This angular mounting is efi'ected by means of members 16 which areconnected to the under surface of the transverse member 4, which supportthe links 13 and are provided with holes through which the rods 15project, and are carried upon opposite sides of the transverse member 4.It will be apparent that the action of the scraper bar 14, which in thisform of device lies in the periphery of an ellipse, will be a shearingone.

Springs 17 normally hold the scraper bar 1e against the surface of thedrum 1 but when any uneven condition of soil is encountered, the scraperbar 1 1, against the action of the springs 17, is moved upwardly byreason of the fact that in the upper ends of the rods 15 are providedelongated slots 18 within which the ends of the links 13 are secured andmay move, relatively, as plainly shown in Fig. 1. It is apparent from aninspection of the full line and dotted line positions in Fig. 1 of theeccentric 6, that the rotation of the disks 8 to one extreme positionwill effect the movement of the scraper bar 14 entirely out ofengagement with the drum surface, so that the roller can be used as aroller alone, and that the movement of the disks 8 to their otherextreme position, will effect the engagement of the scraper bar 14 withthe drums surface, so that said bar may form a lock for the handle, whenthe roller is not in use and, when the roller is in use, this lock willbe a resiliently retained one which will be constantly disturbed by theadjustment of the scraper to the drums surface.

lVhat we claim is:

1. In a land roller, the combination of a drum and a handle therefor; ascraper bar supported by said handle and adapted to be moved into andout of the vicinity of the drum, said bar being arranged at an angle tothe planes containing the axis of the drum; and means for effecting themove ment of said bar.

2. In a land roller, the combination of a drum and ahandle therefor, amanuallyoperable eccentric mounted upon said handle; and a scraper barsupported by said handle and arranged by the actuation of the eccentricto be moved into and out of the vicinitv of the drum, said scraper barbeing arranged at an angle to the planes containing the axis of thedrum.

3. In a land roller, the combination of a drum; an oscillatory handlemounted upon the latter; a manually-operable eccentric mounted upon saidhandle; and a scraper bar supported by said handle and arranged by theactuation of the eccentric to be moved to engage or disengage thesurface of the drum whereby said scraper bar may be caused to form alock for the said handle,

said scraper bar being arranged at an angle 4:. In a land roller, thecombination of a drum and a handle therefor including a tranversemember; a pair of manually-operable rotatably connected disks mountedupon said transverse member; a pair of links eccentrically connected atone end to said disks, respectively, and extending in oppositedirections; a pair of rods; a pair of angle arms mounted upon saidtransverse member and connecting the other ends of said links and saidrods, respectively, the latter being adapted to be reciprocated inguides formed in said transverse member; and a scraper bar disposed atan angle to the planes containing the axis of said drum, supported bysaid rods, and arranged by the reciprocation of the latter to be movedinto and out of the vicinity of the drum.

5. In a land roller, the combination of a drum and a handle therefor; apair of manually-operable rotatably connected disks mounted upon saidhandle; a pair of links eccentrically connected at one end to saiddisks, respectively, and extending in opposite directions; a pair ofrods supported by said handle, connected to, and adapted to bereciprocated by, said links; and a scraper bar supported by said rodsand arranged by the reciprocation of the latter to be moved into and outof-the vicinity of the drum.

6. In a land roller, the combination of a drum and a handle thereforincluding a transverse member; a pair of manually-operable rotatablyconnected disks mounted upon said transverse member; a pair of linkseccentrically connected at one end tosaid disks, respectively, andextending in opposite directions; a pair of rods; a pair of angle armsmounted upon said transverse member and connecting the other ends ofsaid links and said rods, respectively, the latter being adapted to bereciprocated by said angle arms; and a scraper bar supported by saidrods and arranged by the reciprocation of the latter to be moved intoand out of the vicinity of the drum.

Signed by us, this 17th day of September,

RAY E. DUNHAM. ARTHUR E. MERKEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, .D. 0.

